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How to clear the canvas for redrawing
After experimenting with composite operations and drawing images on the canvas I'm now trying to remove images and compositing. How do I do this?
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What is the difference between atomic and critical in OpenMP?
What is the difference between atomic and critical in OpenMP?
8 Answers
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Find the Smallest Integer Not in a List
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If the datastructure can be mutated in place and supports random access then you can do it in O(N) time and O(1) additional space. Just go through the array sequentially and for every index write the value at the index to the index specified by value, recursively placin...
Listing all permutations of a string/integer
...from my experience of interviews though) is to take a string or an integer and list every possible permutation.
28 Answers
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Why does += behave unexpectedly on lists?
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The general answer is that += tries to call the __iadd__ special method, and if that isn't available it tries to use __add__ instead. So the issue is with the difference between these special methods.
The __iadd__ special method is for an in-place addition, that is it mutates the object that it a...
All falsey values in JavaScript
...ing that they evaluate as false in expressions like if(value) , value ? and !value ?
4 Answers
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What is the difference between “px”, “dip”, “dp” and “sp”?
What is the difference between Android units of measure?
33 Answers
33
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Determine version of Entity Framework I am using?
I believe there are two versions 1 and 2? And version 2 is referred to as Entity Framework 4.0?
10 Answers
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Optimizing away a “while(1);” in C++0x
...oops?, although this is WG14 document the rationale applies to C++ as well and the document refers to both WG14 and WG21:
As N1509 correctly points out, the current draft essentially gives
undefined behavior to infinite loops in 6.8.5p6. A major issue for
doing so is that it allows code to m...
Does a javascript if statement with multiple conditions test all of them?
...IT: Though, you shouldn't worry about performance until you've benchmarked and determined that it's a problem. Premature micro-optimization is the bane of maintainability.
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